Respuesta :

length(l)= 5w
width(w)= w
Perimeter(P)= 2w+2l = 108in
1/2P= w+l= 54in
w+(5w)= 54in
6w= 54
w= 9 in 

l= w+5= 9+5= 14 in

A=lw 
A= (14)(9)
A= 126 in²

Answer: The Area of this rectangle is 126 in².